The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2012
Filed:
May. 27, 2011
Takao Harada, Kobe, JP;
Hidetoshi Tanaka, Shinagawa-ku, JP;
Kiminori Hajika, Kobe, JP;
Tadashi Yaso, Kobe, JP;
Toshiyuki Kurakake, Kobe, JP;
Takao Harada, Kobe, JP;
Hidetoshi Tanaka, Shinagawa-ku, JP;
Kiminori Hajika, Kobe, JP;
Tadashi Yaso, Kobe, JP;
Toshiyuki Kurakake, Kobe, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
A process for producing molten iron with a combination of a moving-hearth reducing furnace and an iron bath-type melting furnace that includes charging a bedding carbonaceous material on a hearth of the moving-hearth reducing furnace and placing carbonaceous material-containing agglomerates containing a powdery iron oxide source and a powdery carbonaceous reductant on the bedding carbonaceous material; thermally reducing the carbonaceous material-containing agglomerates while moving the hearth in the moving-hearth reducing furnace to generate solid reduced iron and simultaneously thermally carbonizing the bedding carbonaceous material to generate char; hot-forming the solid reduced iron and the char into agglomerates without substantial cooling; continuously charging the agglomerates into the iron bath-type melting furnace from thereabove; and blowing oxygen-containing gas into the iron bath-type melting furnace to melt the solid reduced iron and to thereby generate molten iron.